JSFiddle - React, Tailwind, and code Playground
HTML
<div class="span8"></div>
<button id="createNote" value="click">click</button>
JavaScript
$('#createNote').click(function() {
$('.span8').empty();
$('.span8').append('<button id="save">Save</button><div><input type="text" style="width: 100%" id="title" placeholder="Title"/>'+
'<textarea contenteditable="true" id="textarea" class="textarea" placeholder="Enter text ..."style="width: 100%;"></textarea></div>');
});
$('#save').on('click',function() {
$("#createNote").hide();
var input = $("#textarea").val();
alert(input);
});